package day1_12.FirstPhase;
// 数组反序
public class ReverseArray {
    public static void main(String[] args) {
        int [] arr = {1,2,3,4,5,6,7,8,9};
        for(int i = 0,j = arr.length - 1; i < j ; i++,j--){
            int temp = arr[i];
            arr[i] = arr[j];
            arr[j] = temp;
        }
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + " ");
        }
    }
}
